seodata.dev

keyword

highway transportation system

Monthly search volume and cost-per-click data for "highway transportation system" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=highway+transportation+system&country=us" +--------------+------------------+ | volume | 590 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
highway 90,500 $0.34 9/20
dot department of transportation 49,500 $16.55 8/20
us department of transportation 14,800 $15.08 8/20
u.s department of transportation 12,100 $9.78 8/20
highway transportation 1,900 $4.04 11/20
highway transport 1,900 $4.82 9/20
road transportation 1,600 $4.41 9/20
what is the highway transportation system 140 $0 10/20
what is highway transportation system 140 $0 9/20
the highway transportation system 30 $0 11/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=highway+transportation+system&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt